With one blow, the corpse beast's head cracked and blood splashed.

A Lingyuan appeared and shot Su Li's forehead.

A new message came to mind.

"Level 1 spirit source: spirit source 910"

Su Li was so excited that he was only short of the last Lingyuan.

He let out a low drink, and Su Li rushed up on his own initiative.

These corpse animals were awakened, abandoned the gnawing one eyed frog corpses, and surrounded Su Li.

In addition to the one he just smashed his head, there are five left in front of him.

Su Li silently calculated in his heart that he regretted that the number of corpses in front of him was too small. Now he likes such low-level corpses that are not strong but can provide a source of spirit for himself. The more, the better.

In a flash, Su Li's eyes caught the attack tracks of these low-level corpse beasts, dodged easily, and then hit the hammer in his hand again.

With a "boo" sound, another corpse beast fell down. A source of spirit appeared in his body and flew towards Su Li.

"Level 1 source: source 1010"

"It's done." Suli was a little excited.

As the spiritual source in the body reached 1010, there was a strong heat flow surging all over the body, followed by an extremely powerful force.

At that moment, his strength, speed, reaction, facial senses and comprehensive physical fitness were greatly improved and strengthened, and he even jumped in the depths of his heart.

This is an indescribable excitement.

In my mind, messages emerge one after another.

"Start promotion, promotion success"

"Level 2 Lingyuan: Lingyuan 020"

"Basic enhancement: strong lung type I"

"Special skill: peep Rune (incomplete)"

"Strengthen selection, enhance lung type I, strengthen stomach and strengthen muscle, only one of them can be selected"

Feeling the surge of strength in his body, Su Li felt that after he became a level 2 spiritual source, his strength was at least nearly 100 kg. If he could break out 500 kg of strength in his arms before, he could break out at least 600 kg of strength now.

The remaining four corpses rushed up. Zuri didn't have time to choose what parts to strengthen. The hammer in his hand waved out. Although it was not long, it was an iron product and had a certain weight. Although the weight of the hammer was too light for Su Li's current strength, it could still produce terrible lethality. As long as it was hit by his hammer, Bones immediately break, even the hardest skull.

A face-to-face, Su Li smashed the head of a corpse beast again, watched the corpse beast fall, Lingyuan appeared, and was fused into his body, but there was almost no change in his body.

As he became more and more powerful, the changes caused by the spiritual source absorbed by him became smaller and smaller. Now, it can be almost ignored.

What surprised him most was that he absorbed the spiritual source this time, but there was no new message in his mind.

"What's the matter?" Su Li was a little stunned. Then he killed the remaining three corpses. Although they all absorbed the source of spirit, there was no change.

He still lacks 20 spiritual sources for re evolution.

"Did I become a level 2 spiritual source, but these corpse beasts are too low, so it's no use to absorb their spiritual source?"

Su Li pondered slightly and thought of this possibility.

If so, it means that it will be difficult for him to become stronger. He needs to hunt stronger monsters.

"When I was promoted to level 2, I got another chance to strengthen. Now I have three choices: one is to continue to strengthen lung type I, the second is to strengthen the stomach, and the third is to strengthen the muscles. Which part should I choose to strengthen?"

"The function of strong lung type I is to enhance vital capacity, which can prolong the holding time for two minutes. If you choose to strengthen this, it should make the holding time longer."

"I just don't know what ability can be obtained by strengthening the stomach and muscles."

Su Li knows that for the flooded city, the length of breath holding time is extremely important. However, his physical strength is enhanced, and the breath holding time will not be less than two minutes. In addition, the two minutes of strong lung type I enhancement means that he can hold his breath for four minutes.

"Four minutes should be enough for the time being. Even if you really fall into the water, such a long time is enough to come out of the water for air. If you can't float for so long, it's just that you encounter something terrible. Even if you can hold your breath for another minute or two, it's bad luck."

After considering for a long time, Su Li also chose to strengthen his muscles out of curiosity about the strengthening of the other two body parts.

According to his own guess, strengthening muscles should be related to strength. Fighting with one eyed frog made him understand that strength is the most important. Only when strength is strong enough, can he hunt more powerful enemies.

As he chose to strengthen his muscles, new messages soon appeared in his mind. At the same moment, he felt that the muscles all over his body began to change unusually.

"Basic enhancement acquisition: muscle enhancement type I"

"The muscles have been basically strengthened, the strength has been enhanced, the ability to control the muscles has been enhanced, and the muscle toughness has been enhanced."

Su Li took a deep breath and felt that all the muscles in his body were active, like little snakes twisting and shaking. With his naked eyes, he could see his chest, abdominal muscles, arms, thighs and lower legs. The muscles all over his body were expanding and bulging, and forces burst out from these muscles. Not only that, his control over these muscles was enhanced, A move of mind can strengthen these muscles, harden them and enhance their ability to fight.

"It's incredible that the muscles all over my body have been strengthened. According to the information, increasing muscle can enhance the strength of 100 kg, not only enhance the strength, but also I seem to be able to artificially control these muscles. I can expand and harden any muscle I want. In this state, I can resist some attacks."

Su Li tried to control these muscles. He was surprised and happy. He broke through and became a level 2 spiritual source. His strength increased by about 100 kg, and the strength of his arms reached 600 kg. Now, with the understanding of "muscle increasing type I", he gained about 100 kg of strength. It can be said that the strength between his arms is no less than 700 kg.

700 kg, 350 kg, which is unimaginable strength for an ordinary office worker like Suli who doesn't exercise much.

This means that Suli's arms can lift five humans with an average weight of 70 kg.

"This spiritual source is really incredible. It can make people so powerful, and I can become more powerful. Unfortunately, there are twenty spiritual sources needed, and the spiritual sources obtained by killing such low-level corpse beasts are no longer valid."